package week5;

/**
 * Created by dell on 2017/3/21.
 */
interface Some3{
    void doSome();
}
class SomeIpm1 implements Some3 {
    public void doSome() {
        System.out.println("Do something.");
    }
}
public class Exercise2 {
    public static void main(String[] args) {
        Some3 s = new SomeIpm1();
        s.doSome();
    }
}
